A-31-12
Travel: 12 Minshaft: 1.688
Maxshaft: 1.938 Bolt: 0.5
A: 16.125 B: 0.875
C: 7.5625 D: 0.875
E: 8.625 F: 2.5
G: 9.3125 H: 20.625
J: 0.625 K: 1.375
M: 2 N: 0.625
X: 4.0625